7) Memory Flashcards
Memory
The retention of information over time
far from perfect!
Memory Illusion
false but subjectively compelling memory
Attention
Focusing awareness on a narrowed range of stimuli or events
Hard to pay attention to everything all at once
Why is attention important?
because we first need to pay attention in order to remember things
It affects our memory & performance
Inattention Blindness
when we don’t notice something that’s right in front of our eyes because we are too busy focusing on other things
-> we’re not good at multitasking!
Name the 4 basic processes of memory
- Attention
- most important step - Encoding
- forming a memory code - Storage
- the process of maintaining info in memory - Retrieval
- recover / reactivate info from memory systems
What’s a retrieval cue?
some hint that helps us recall info
What is a schema?
Organized knowledge structure or mental model that we’ve stored in memory
Why are schemas important?
How can they be unhelpful?
Equip us with frames of reference for interpreting new situations. Without them, we’d find some info impossible to comprehend
BUT can make us remember things that never happened. Oversimplifying schemas = memory illusions
Sensory Memory
Brief storage of perceptual info before it is passed to STM / working memory or discarded
Briefly preserves info in its original form (fraction of a second), linking things tgt
What are the 3 forms of sensory memory?
- Iconic memory - visual
- Echoic memory - hearing
- Haptic memory - touch
What is short term memory?
What are its capacity and duration?
System that retains a limited capacity/duration
Duration: maintain unrehearsed information for ~ 20 seconds
Capacity: magic number is 7 +- 2 (George Miller)
Rehearsal
Process of repeating or thinking about the info
Extend duration of retention
What are the 2 types of rehearsal?
- Maintenance
- repeat in original form, sound & looks - Elaborative
- link stimuli in meaningful way
Chunking
Grouping familiar stimuli to store as one unit
Need long term memory to help us chunk meaningfully
Extend capacity of STM
Describe the levels of processing
- Shallow = structural
- What it looks like - Intermediate = Phonemic
- What they sound like - Deep = Semantic
- thinking about the meaning
Visual Imagery
Creating mental images to help memory formation
High visual imagery means easy to imagine as objects, like a ball
Low visual imagery means abstract things like truth or quality
Self Referent Encoding
Relating the information back to personal experiences
Promotes additional elaboration & organization info
What are three ways we can enhance encoding?
- Deep level of processing
- Visual imagery
- Self-Referent Encoding
Working Memory
A limited capacity storage system
Maintains info by providing interface between perception, memory, & action
Baddeley said
short term memory should be replaced with working memory
Central Executive
Decision making
Coordinate actions
Controls attention
Phonological Loop
Auditory component similar to STM
Allow recitation of info
Episodic Buffer
Interface btwn working and long term memory
Temporary limited capacity store for integration of info from other modules
Helps explain binding problem
Visuo-Spatial SketchPad
Temporarily hold & manipulate visual images
ex/ method of Loci, buying furniture
What are the 4 components of working memory?
Central executive
Phonological loop
Episodic Buffer
Visuo-Spatial SketchPad
What is the binding problem?
When we store info, they’re stored in diff places
How does it come together?
Episodic Buffer can sorta explain this
Long term memory
Larger capacity & longer retention
Diff kinds of mistakes (semantic errors)
LTM makes ___ errors while STM makes ____ errors
semantic // acoustic
Name the divisions in LTM
- Explicit
a. Semantic
b. Episodic - Implicit
a. Procedural
b. Priming
c. Habituation
d. Conditioning
Explicit memory
Declarative
Intentional recollections of facts or experiences
Divided into Semantic & Episodic
Semantic memory
a type of explicit memory
General knowledge & facts
NOT tied to when info was learned
Episodic memory
a type of explicit memory
Chronologically dated recollections of personal experiences
Can become semantic!
Implicit memory
memories we don’t deliberately / consciously remember
Procedural Memory
a type of implicit memory
How to do specific things
Motor skills & habits
-> ex/ do worse if we focus too hard
muscle memory can be described as
procedural, implicit memory
Priming
implicit memory, not aware of this!
When previously encountered stimuli impacts future behavior
Ability to identify stimulus more easily / quickly after encountering smt similar
Conditioning
implicit memories we not aware of
Pair NS + UCS to elicit automatic response
Habituation
learning not to respond to repeated or unimportant stimuli
Discuss the difference between explicit & implicit memory
Explicit
- Consciously aware
- Assessed directly by recall / recognition
- Involves skeletal muscles (PNS)
- Impacted by age (mostly episodic), drugs, amnesia, retention interval
Implicit
- Not consciously aware
- Assessed indirectly by relearning
- Involves ANS
- Not impacted by age, drugs, amnesia, retention interval
Discuss the difference between explicit & implicit memory
Explicit
- Consciously aware
- Assessed directly by recall / recognition
- Impacted by age (mostly episodic), drugs, amnesia, retention interval
Implicit
- Not consciously aware
- Assessed indirectly by relearning
- Not impacted by age, drugs, amnesia, retention interval
A man suffering from amesia can’t recall his home phone number when asked, but his fingers dial the correct numbers when given a phone. This suggests that the amnesia affects ____ memory but not ____ memory
Semantic // Procedural
OR
Explicit // Implicit
^^ first one better, more specific
Permastore
type of LTM that seems to be permanent
Primary & Recency Effect
Tendency to remember words at beginning and end of a list better
Serial Position Curve
Graph depicting the effects of people’s ability to recall items on a list
What are some different methods to test capacity and duration of short term memory?
Digit span test : capacity
Remember digits & do math : duration